Move around some modules

* extern -> gone, runproc absorbed by pager, others moved into io/
* display -> local/ (where else would we display?)
* xhr -> html/
* move out WindowAttributes from term, so we don't depend on local
  from server

2 files changed, 43 insertions, 0 deletions

diff --git a/src/io/stdio.nim b/src/io/stdio.nim
new file mode 100644
index 00000000..729b50f6
--- /dev/null
+++ b/src/io/stdio.nim
@@ -0,0 +1,25 @@
+import std/posix
+
+proc closeHandle(fd, flags: cint) =
+  let devnull = open("/dev/null", flags)
+  doAssert devnull != -1
+  if devnull != fd:
+    discard dup2(devnull, fd)
+    discard close(devnull)
+
+proc closeStdin*() =
+  closeHandle(0, O_RDONLY)
+
+proc closeStdout*() =
+  closeHandle(1, O_WRONLY)
+
+proc closeStderr*() =
+  closeHandle(2, O_WRONLY)
+
+proc safeClose*(fd: cint) =
+  if fd == 0:
+    closeStdin()
+  elif fd == 1 or fd == 2:
+    closeHandle(fd, O_WRONLY)
+  else:
+    discard close(fd)
diff --git a/src/io/tempfile.nim b/src/io/tempfile.nim
new file mode 100644
index 00000000..5968270b
--- /dev/null
+++ b/src/io/tempfile.nim
@@ -0,0 +1,18 @@
+import std/os
+
+var tmpf_seq: int
+proc getTempFile*(tmpdir: string, ext = ""): string =
+  if not dirExists(tmpdir):
+    createDir(tmpdir)
+  var tmpf = tmpdir / "chatmp" & $getCurrentProcessId() & "-" & $tmpf_seq
+  if ext != "":
+    tmpf &= "."
+    tmpf &= ext
+  while fileExists(tmpf):
+    inc tmpf_seq
+    tmpf = tmpdir / "chatmp" & $tmpf_seq
+    if ext != "":
+      tmpf &= "."
+      tmpf &= ext
+  inc tmpf_seq
+  return tmpf